Hotel Operating Revenue, Departmental Expenses and Other Property-Related Costs (Schedule of Other Property-Related Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	$ 63,940	$ 61,944	$ 188,428	$ 179,399
Other property-related costs as a percent of total hotel operating revenue	27.20%	27.90%	27.20%	27.60%
Hotel General and Administrative Expense [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	20,920	20,202	62,972	59,260
Other property-related costs as a percent of total hotel operating revenue	8.90%	9.10%	9.10%	9.10%
Marketing [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	19,565	18,060	59,008	54,165
Other property-related costs as a percent of total hotel operating revenue	8.30%	8.10%	8.50%	8.30%
Repair and Maintenance [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	11,914	11,514	35,817	33,625
Other property-related costs as a percent of total hotel operating revenue	5.10%	5.20%	5.20%	5.20%
Utilities [Member]
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Other property-related costs	$ 11,541	$ 12,168	$ 30,631	$ 32,349
Other property-related costs as a percent of total hotel operating revenue	4.90%	5.50%	4.40%	5.00%